Lesson 5 Test

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Question 1 of 10

1. Question

In the photo you will see an example of permanent deformation on a road on a ‘flat and even’ area with a silty subgrade. Assume that the deformation is due to Mode 2 permanent deformation problems. Pick two best rehabilitation options:

Mixmilling 150 mm and new pavement 50 mm

Drainage improvement, stabilisation 100 mm, new pavement

Drainage improvement, mixmilling and shaping, 250 mm of new base and pavement

Full reconstruction of the road

Overlay with 60 mm of asphalt

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Question 2 of 10

2. Question

Select two rehabilitation options that should be at least done in the road seen in the photo.

Drainage improvement, mixmilling, shaping and a new pavement, assure that especially the upper ditch will be good condition, remove verges